Cutter loach fish (i.e. Chinese loach), also known as steel loach, cutter loach, stone cone, Guangxi Hakka people call it "Pig Mani saw", "Pig Mani", is a freshwater fish, distributed in the south of China and the Huaihe River, the Beijing-Hangzhou Canal, the Nansihu and other watersheds, the body is thin and long, the back of the barbs, the mouth is sharp and thin. Barbs, mouth and sharp and thin. It is mainly distributed in the plains provinces of China, from Guangxi in the south to Hebei in the north and Taiwan in the east. It belongs to freshwater fish, inhabiting rivers and streams with gravel bottoms, often hiding in stone crevices or caves, and distributed in various water systems south of the Huaihe River. It is widely distributed in the south living in shallow waters with many aquatic plants. To small invertebrates and some plants for food, suitable for the water temperature of 24 - 28 ℃, preferring weakly acidic soft water, is a nocturnal, so during the day are lurking in the sand, leaving only the nose and mouth outside, or hidden in the dark, waiting for the night to come, and then out of the activities of foraging.